Video Of The Week - Why Astronauts Never Shed Tears


CCSS NAS-4 145 Words 1-Minute Listen

Though it is common knowledge that lack of gravity makes life in space a tad different from that on earth, very few of us ever think about how different. There is of course the fact that astronauts are always suspended and floating around, but what about beyond that? Something as basic as shedding a tear or two of joy or sorrow?

Turns out that the scientists cannot do that at all! That's because while the tears can form normally, the zero gravity environment prevents them from falling. Instead, all that ends up happening is that multiple tears turn into blobs of water that sit right next to eye or if they get really big, move around the face but never, down to the ground!

Sounds unbelievable? Then watch Canadian astronaut and the current commander of the International Space Station Chris Hadfield, demonstrate it for you.

Cite Article
  • boyissocool4450
    boyissocool4450Friday, October 2, 2020 at 6:41 am
    Chris Hadfield, I know him
    • rawrlikeameowThursday, December 7, 2017 at 4:35 pm
      wow! Just wow.
      • omorThursday, December 7, 2017 at 3:01 pm
        so cool
        • smartzahra
          smartzahraSaturday, November 19, 2016 at 12:25 am
          i have watched it when some scinectest came to my room it was really fun we went in to a air balloon
          • KnowitallTuesday, November 1, 2016 at 8:50 am
            I knew that. Dont remind me. But its cool.
            • KaneMonday, June 13, 2016 at 3:06 pm
              awesome :)
              • UnknownMonday, April 11, 2016 at 12:05 pm
                Weird and cool
                • iluvpups
                  iluvpupsWednesday, April 6, 2016 at 5:51 pm
                  wow cool
                  • puppy1
                    puppy1Wednesday, April 6, 2016 at 11:06 am
                    • JTuesday, February 23, 2016 at 3:15 pm
                      awesome 😃